All of the following substances are organic except:
lipids.
electrolytes.
carbohydrates.
proteins.
The Correct Answer is B
A. lipids: Lipids are organic molecules because they are composed of carbon-hydrogen chains.
B. electrolytes: Electrolytes (like sodium, potassium, and chloride) are inorganic substances because they do not contain carbon-hydrogen bonds.
C. carbohydrates: Carbohydrates are organic compounds consisting of carbon, hydrogen, and oxygen.
D. proteins: Proteins are organic polymers made of amino acid chains containing carbon.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. sensory perception: Sensation is carried by the dorsal (posterior) root. If only the ventral root is damaged, sensation remains intact.
B. willed movement only: While willed movement is lost because motor commands can't reach the muscle, this is not the only thing lost.
C. reflex activity: The ventral root is the "exit" for all motor commands. Without it, both voluntary movement and involuntary motor reflexes (like the knee-jerk) are impossible in that specific area.
D. both reflex activity and sensation: Sensation is unaffected by ventral root damage.
Correct Answer is B
Explanation
A. lipids: Lipids are organic molecules because they are composed of carbon-hydrogen chains.
B. electrolytes: Electrolytes (like sodium, potassium, and chloride) are inorganic substances because they do not contain carbon-hydrogen bonds.
C. carbohydrates: Carbohydrates are organic compounds consisting of carbon, hydrogen, and oxygen.
D. proteins: Proteins are organic polymers made of amino acid chains containing carbon.
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